252220428799 has 4 divisors (see below), whose sum is σ = 253351462336. Its totient is φ = 251089395264.

The previous prime is 252220428793. The next prime is 252220428829. The reversal of 252220428799 is 997824022252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 252220428799 - 2⁷ = 252220428671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252220428793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 565516434 + ... + 565516879.

It is an arithmetic number, because the mean of its divisors is an integer number (63337865584).

Almost surely, 2^252220428799 is an apocalyptic number.

252220428799 is a deficient number, since it is larger than the sum of its proper divisors (1131033537).

252220428799 is a wasteful number, since it uses less digits than its factorization.

252220428799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131033536.

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 252220428799 in words is "two hundred fifty-two billion, two hundred twenty million, four hundred twenty-eight thousand, seven hundred ninety-nine".